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Finding the Fourth Proportional to 72,995.47, 100,716.49 and 44,314.39

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Solution

The fourth proportional to 72,995.47, 100,716.49 and 44,314.39 is: 61,143.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,995.47 : 100,716.49 = 44,314.39 : x
  2. Step 2: Convert to fraction form
    72,995.47/100,716.49 = 44,314.39/x
  3. Step 3: Cross multiply
    72,995.47x = 100,716.49 × 44,314.39
  4. Step 4: Simplify right side
    72,995.47x = 4,463,189,817.29
  5. Step 5: Solve for x
    x = 4,463,189,817.29/72,995.47
  6. Step 6: Final answer
    x = 61,143.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.